The Cubs just might be starting to separate themselves from the log-jammed National League Central.They got a little help Thursday in the bottom of the 13th inning for a 5-4walk-off win over the Phillies.AfterMatt Szczurhit a potential double-play ball to Philliessecond basemanCesar Hernandez, the relay throw from shortstopFreddy Galvis was wide of first base. The error allowedAlbert Almora Jr., who led off the inning with a double, to score from the second and send Wrigley Field into a frenzy. The Cubs had a couple of chances to win the game earlier in the game. The Cubs loaded the bases in the 12th with just one out. https://www.diamondbacksedges.com/arizona-diamondbacks/alex-avila-jersey The Phillies brought right fielderTy Kellyas a fifth infielder and the strategy worked asWillson Contrerashit into a 6-9-3 double play to end the inning.Chicago could have won it in the ninth inning, too. The Cubs had runners at first and second with one out, but Phillies relieverJeanmar Gomez caught Ben Zobrist sleeping at second and picked him off. Kris Bryant singled, which would have scored Zobrist had he still been on base.Anthony Rizzo then grounded out to end the inning.After Milwaukee's 5-4 win at St. Louis, the Cubs (16-12) hold a game-and-a-half lead on the Brewers in the NL Central with the Reds (14-14) just two games back. The Brewers (15-14) broke a tie with the Reds and Cardinals (13-14) for second place in the division. But the Pirates (12-16) are still just four back in the tight division following Thursday's 4-2 lo …